I want the box to move in the same way as the player

You can write your topic however you want, but you need to answer these questions:

  1. What do you want to achieve? Keep it simple and clear!
    I would like the box not to be rigid but to tilt when the player looks up or down.

  2. What is the issue? Include screenshots / videos if possible!
    I don’t know how to approach this.

  3. What solutions have you tried so far? Did you look for solutions on the Developer Hub?
    I have written the following code

local model = script.Parent.Parent
local prompt = script.Parent
local animation = script.Animation

local distanceZ = -2.7--Model distance from character/ how far the model will be from the character
local distanceY = -0.5--Model distance from the ground

local animationTrack = nil
local owner = nil

prompt.Triggered:Connect(function(player)
	
	local ModelClone = model:Clone()
	ModelClone.Anchored = false
	ModelClone.Parent = workspace
	
	local character = player.Character
	local humanoid = character:FindFirstChild("Humanoid")
	
	if not animationTrack then
		animationTrack = humanoid:LoadAnimation(animation)
	end
	
	if not ModelClone:FindFirstChildWhichIsA("WeldConstraint") and owner == nil and not player:FindFirstChild("Carry") then
		local CarryValue = Instance.new("BoolValue", player)
		CarryValue.Name = "Carry"
		
		local weld = Instance.new("WeldConstraint", ModelClone)
		ModelClone.CanCollide = false
		ModelClone.CFrame = character.HumanoidRootPart.CFrame * CFrame.new(0, distanceY, distanceZ)
		weld.Part0 = ModelClone
		weld.Part1 = character.HumanoidRootPart
		owner = player.Name
		animationTrack:Play()
		
	elseif ModelClone:FindFirstChildWhichIsA("WeldConstraint") and owner == player.Name and animationTrack and player:FindFirstChild("Carry") then
		
		animationTrack:Stop()
		ModelClone:FindFirstChildWhichIsA("WeldConstraint"):Destroy()
		player:FindFirstChild("Carry"):Destroy()
		ModelClone.CanCollide = true
		owner = nil
		animationTrack = nil
		
	end
	
	--<<Death Detector>>--
	humanoid.Died:Connect(function()
		pcall(function()
			player.Carry:Destroy()
		end)
		
	end)
	
end)